Containing Hydrides Or Organometallic Of Two Or More Different Component A Metals Patents (Class 502/114)
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Patent number: 6518384Abstract: Ethylene and/or propylene are polymerized to form highly branched, liquid polymers by contacting ethylene and/or propylene monomer, in the presence of an inert reaction medium, with a catalyst system which comprises (1) an alkyl aluminum component, (2) an aluminum or gallium trihalide component, and, optionally, (3) a Group 4 metallocene dihalide component.Type: GrantFiled: November 1, 2000Date of Patent: February 11, 2003Inventors: Ayusman Sen, Louis M. Wojcinski, II, Shahid Murtuza
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Patent number: 6444765Abstract: An olefin polymerization process is described. The process comprises preparing a catalyst system by premixing a first organoaluminum with a supported boraaryl catalyst and then polymerizing an olefin in the presence of the premixed supported catalyst, an activator and a second organoaluminum. The process produces polyolefins having broad and/or bimodal molecular weight distributions compared to the process in which either the first or the second organoaluminum is not used.Type: GrantFiled: June 14, 2000Date of Patent: September 3, 2002Assignee: Equistar Chemicals, LPInventor: Craig C. Meverden
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Patent number: 6426314Abstract: There has been invented a codeposition process for fabricating hydrogen scavengers. First, a &pgr;-bonded allylic organometallic complex is prepared by reacting an allylic transition metal halide with an organic ligand complexed with an alkali metal; and then, in a second step, a vapor of the &pgr;-bonded allylic organometallic complex is combined with the vapor of an acetylenic compound, irradiated with UV light, and codeposited on a substrate.Type: GrantFiled: May 31, 2001Date of Patent: July 30, 2002Assignee: The Regents of the University of CaliforniaInventors: David W. Carroll, Kenneth V. Salazar, Mitchell Trkula, Cynthia W. Sandoval
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Patent number: 6420298Abstract: A catalyst composition for the polymerization of one or more 1-olefins (e.g., ethylene) comprises a transition metal catalyst precursor and a cocatalyst, the transition metal catalyst precursor comprising a contact product of an unsubstituted metallocene compound and an aluminum alkyl compound in a hydrocarbon solvent solution. In another embodiment, the transition metal catalyst precursor is bimetallic and contains a non-metallocene transition metal catalyst component. When a bimetallic catalyst precursor is used, the resin product exhibits improved properties, and has a bimodal molecular weight distribution, long chain branching (LCB), and good bubble stability.Type: GrantFiled: August 31, 1999Date of Patent: July 16, 2002Assignee: ExxonMobil Oil CorporationInventors: Robert I. Mink, Thomas E. Nowlin, Sandra D. Schregenberger, Kenneth G. Schurzky, Pradeep P. Shirodkar
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Publication number: 20020087027Abstract: A catalyst composition suitable for use as a catalyst for the preparation of an ester comprises (a) an organometallic compound which is the reaction product of an orthoester or condensed orthoester of titanium, zirconium or aluminum, an alcohol containing at least two hydroxyl groups, an organophosphorus compound containing at least one P—OH group and preferably a base, and (b) a compound of germanium, antimony or tin. A process for the preparation of an ester comprises carrying out an esterification reaction in the presence of the catalyst composition. In a further embodiment the organometallic compound comprises the reaction product of, in addition, a 3-hydroxy carboxylic acid.Type: ApplicationFiled: November 26, 2001Publication date: July 4, 2002Applicant: ACMA LimitedInventors: Charles M. Lindall, John Ridland, Neville Slack
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Patent number: 6410474Abstract: A make-up catalyst of at least one metallic component of a bimetallic catalyst component is used in conjunction with a bimetallic catalyst to control the proportion of weight fractions in broad or bimodal molecular weight distribution olefin resin product. The bimetallic catalyst which is formed with at least one metallocene of a transition metal, produces broad or bimodal molecular weight distribution polyolefin resin whose composition depends on the ratio of the concentration of the two catalyst components producing the HMW/LMW components. The make-up catalyst consisting of a single metal component is added in proportion necessary to make-up the deficiencies in the amount of the HMW/LMW component. The type of make-up catalyst added depends on whether increase of the HMW or LMW component produced by the bimetallic catalyst is sought.Type: GrantFiled: March 10, 1997Date of Patent: June 25, 2002Assignee: ExxonMobil Oil CorporationInventors: Thomas E. Nowlin, Sandra D. Schregenberger, Pradeep P. Shirodkar, Grace O. Tsien
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Patent number: 6403736Abstract: An ethylene polymerization process is disclosed. The process uses a single-site catalyst that contains a boraaryl ligand. The catalyst is premixed with alkyl aluminum to reduce the induction time of the catalyst. In addition, premixing the catalyst with triethyl aluminum significantly enhances the bulk density of polyethylene.Type: GrantFiled: June 14, 2000Date of Patent: June 11, 2002Assignee: Equistar Chemicals, LPInventor: Shaotian Wang
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Patent number: 6399532Abstract: Catalyst composition for use in the polymerization of olefins comprise neutral metal complexes together with activators comprising non-aromatic boron compounds. Suitable activators are triisobutylboron together with trialkylaluminium compounds. Preferred complexes are metallocenes. The use of such activating systems obviates the need for expensive aluminoxanes or aromatic fluorine containing compounds.Type: GrantFiled: January 5, 2000Date of Patent: June 4, 2002Assignee: BP Chemicals LimitedInventors: Birgit Angelika Dorer, David Pratt, Christopher Sharp
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Patent number: 6395669Abstract: A catalyst component formed by the steps of contacting a transition metal-containing metallocene of a transition metal of Group 4, 5 or 6 of the Periodic Table of the Elements with silica or an organic support. This product is contacted with an organomagnesium compound or complex followed by contact with an alcohol and a silane. Finally, the so-contacted product is contacted with a Group 4, 5 or. 6 transition metal-containing non-metallocene compound. The component is preferably combined with an aluminum-containing cocatalyst to form a catalyst system.Type: GrantFiled: July 27, 2000Date of Patent: May 28, 2002Assignee: Equistar Chemicals, LPInventors: William J. Sartain, Patricia A. Hooks, Keta M. Lindstrom, Stella L. Ellis, Douglas D. Klendworth, Albert P. Masino, Richard W. Fries, Therese A. Pastrick
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Patent number: 6384159Abstract: The present invention relates to a process to produce polyethylene through homopolymerization or copolymerization of ethylene with alpha-olefins in the presence of a titanium amide catalyst supported by an organic polymer material, for the production of moldings, such as through extrusion, injection molding, film blowing, sintering under pressure or ram extrusion. The catalyst according to the present invention contains a partially chloromethylated styrene divinyl benzene copolymer as the organic polymer material, a complex compound supported by it, which contains Mg, Al and Ti.Type: GrantFiled: April 21, 2000Date of Patent: May 7, 2002Assignee: Buna Sow Leuna Olefinverbund GmbHInventors: Jürgen Schellenberg, Heinz-Jürgen Kerrinnes, Gerd Fritzsche, Gerd Lohse
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Patent number: 6372681Abstract: A novel catalyst for olefin polymerization is provided which comprises [A] a metallocene compound containing a transition metal selected from Groups 3, 4, 5, and 6 of Periodic Table, [B] a reaction product of topotactic reduction by electron transfer, and [C] an organoaluminum compound. The catalyst may contain additionally [D] an organoalkaline earth metal compound or an organozinc compound. This catalyst has high catalytic activity for olefin polymerization without employing an expensive catalyst component.Type: GrantFiled: March 9, 1999Date of Patent: April 16, 2002Assignee: Tosoh CorporationInventors: Satoru Yamada, Akihiro Yano
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Publication number: 20020035029Abstract: A catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises (i) a specific organometallic complex having a neutral multidentate ligand having a tripod structure, (ii) an alkylaluminoxane, and an optional ingredient selected from:Type: ApplicationFiled: September 28, 2001Publication date: March 21, 2002Applicant: TOSOH CORPORATIONInventors: Toru Yoshida, Toshihide Yamamoto, Hisanori Okada, Hideyuki Murakita
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Patent number: 6352953Abstract: Disclosed is a novel transition metal composition of a metaracycle structure represented by the formula wherein M1 is an element of Group IVB in the Periodic Table, M2 is an element of Group IIIA in the Periodic Table, R1 and R2 each are for instance a cyclopentadienyl group, R3 and R4 each are for instance a hydrocarbon group, R5 and R6 each are a hydrogen atom and R7 and R8 indicate an indan ring formed by bonding to each other.Type: GrantFiled: October 9, 2000Date of Patent: March 5, 2002Assignee: Japan Polyolefins Co., Ltd.Inventors: Takashi Seki, Hiroyuki Shimizu, Akira Sano
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Publication number: 20010049331Abstract: The invention is directed to organometallic catalysts prepared by a process comprising a) combining nucleophilic group-containing particulate support material with an arylboron or arylaluminum Lewis acid compound in the presence of a Lewis base compound; b) contacting the product of a) with a trialkylaluminum compound before combining said product with a metal precursor compound capable of activation for olefin polymerization by said product a); and, c) combining the product of b) with said metal precursor compound. These catalyst compositions are suitable for addition reactions of ethylenically and acetylenically unsaturated monomers. The invention includes a polymerization process of combining or contacting olefinically unsaturated monomers with the invention catalyst composition. Use of the invention catalyst to polymerize &agr;-olefins is exemplified.Type: ApplicationFiled: November 19, 1999Publication date: December 6, 2001Inventor: MAIN CHANG
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Patent number: 6323149Abstract: The present invention relates to a metallocene compound as a catalyst component for the polymerization of olefins, said compound, is stable to air and moisture so that generates no hydrogen halide by hydrolysis and easily handled, and has a high storage stability and a high catalyst activity. Specifically, the catalyst component for the polymerization of olefins comprises a transition metal composition represented by the general formula [1] and [2]: (Ra Cp)m(R′b Cp)M(—X—Ar—Yc)4−(m+n) [1] R″(Rd Cp) (R′e Cp)M(—X—Ar—Yc)2 [2] wherein M is Ti, Zr or Hf; (Ra Cp),(R′b Cp), (Rd Cp) and (R″e Cp ) each is a radical having the cyclopentadienyl skeleton; R″ is a radical which links (Rd Cp) and (R′e Cp); (—X—Ar—Yc) is a grouping in which the aromatic ring Ar substituted by a specified radical Y bonds to M through an oxygen or sulphur atom X.Type: GrantFiled: May 16, 2000Date of Patent: November 27, 2001Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Toshifumi Takemori, Shigeharu Yamamoto, Masatoshi Tsuchitani
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Patent number: 6239058Abstract: The invention provides a process for commercial production of syndiotactic polyolefins using a metallocene catalyst supported on silica treated with MAO. The invention includes contacting the supported metallocene catalyst with a trialkylaluminum and aging the catalyst 12 to 24 hours prior to polymerization.Type: GrantFiled: May 28, 1998Date of Patent: May 29, 2001Assignee: Fina Technology, Inc.Inventors: Edwar S. Shamshoum, Christopher G. Bauch, B. R. Reddy, David J. Rauscher, Kevin P. McGovern
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Patent number: 6232257Abstract: Ethylene and/or propylene are polymerized to form highly branched, liquid polymers by contacting ethylene and/or propylene monomer, in the presence of an inert reaction medium, with a catalyst system which comprises (1) an alkyl aluminum component, (2) an aluminum or gallium trihalide component, and, optionally, (3) a Group 4 metallocene dihalide component.Type: GrantFiled: March 19, 1999Date of Patent: May 15, 2001Assignee: The Penn State-Research FoundationInventors: Ayusman Sen, Louis M. Wojcinski, II, Shahid Murtuza
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Patent number: 6228791Abstract: The present invention is a solid catalyst component for polymerization of olefins prepared by contacting a magnesium compound, a tetravalent halogen-containing titanium compound, a diester of an aromatic dicarboxylic acid, an aromatic hydrocarbon and an organic aluminum compound containing a hydroxyl group represented by the following general formula (R1CO2)mAl(OH)3-m or aluminum hydroxide. The catalyst for polymerization of olefins comprising said solid catalyst component, an organic aluminum compound represented by the general formula R2pAlQ3-p and an organic silicon compound represented by the general formula R3qSi(OR4)4-q can retard the rate of forming a polymer having a low molecular weight or a low stereoregular polymer which is soluble in a polymerization solvent in slurry polymerization and can obtain a high stereoregular polymer in a high yield, and also can obtain a copolymer having an excellent property in a high yield in the copolymerization of olefins.Type: GrantFiled: July 6, 1999Date of Patent: May 8, 2001Assignee: Toho Titanium Co., Ltd.Inventors: Takuo Kataoka, Masayoshi Saito, Isa Nishiyama
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Patent number: 6200921Abstract: The objective of the present invention is to provide a solid catalyst component and a catalyst for polymerization of olefins, which shows a high activity, can lower the rate of forming a polymer having a low molecular weight or a low stereoregular polymer which is soluble in a polymerization solvent and can obtain a high stereoregular polymer in a high yield. The present invention is a solid catalyst component(A) for polymerization of olefins prepared by contacting (a) dialkoxymagnesium, (b) a titanium compound, (c) a diester of an aromatic dicarboxylic acid, (d) an aromatic hydrocarbon and (e) an organic silicon compound containing a hydroxyl group, and a catalyst for polymerization of olefins prepared from the solid catalyst component (A) , an organic aluminum compound (B) represented by the general formula R2pAlQ3-p and an organic silicon compound (C) represented by the general formula R3qSi(OR4)4-q.Type: GrantFiled: October 26, 1999Date of Patent: March 13, 2001Assignee: Toho Titanium Co., Ltd.Inventor: Takuo Kataoka
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Patent number: 6194339Abstract: An ethylene polymerization catalyst and a catalyst system which provides an ethylene copolymer which, when formed into a film, is characterized by the combination of high stiffness and impact strength. The ethylene polymerization catalyst is formed by contacting a support with an organosilicon compound. The so-treated support is thereupon contacted, in a second step, with a dialkylmagnesium compound or complex. In a third step, the product of the second step is contacted with an alcohol or silane compound. This product, in turn, in a fourth step, is contacted with a transition metal compound. Finally, in a fifth and concluding step, the product of the fourth step is contacted with a Group 13 metal-containing compound. The second and third, as well as the third and fourth contacting steps may be reversed.Type: GrantFiled: November 17, 1999Date of Patent: February 27, 2001Assignee: Equistar Chemicals, LPInventor: William J. Sartain
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Patent number: 6180553Abstract: Effective catalyst in the selective hydrogenation of olefinic double bonds, comprising the reaction product between: (A) at least one cyclopentadienyl complex of a transition metal having the following general formula (I): (R)M(R1)(R2)(R3) (I) wherein: M is selected from titanium, zirconium and hafnium, preferably titanium; R is an anion containing an &eegr;5-cyclopentadienyl ring co-ordinated to M; and each R1, R2 or R3, independently, represents an organic or inorganic group of an anionic nature bound to M, and may, particularly, be hydride, halide, a C1-C8 alkyl group, a C3-C12 alkylsilyl group, a C5-C8 cycloalkyl group, a C6-C10 aryl group, a C1-C8 alkoxyl group, a C1-C8 carboxyl group, a C2-C10 dialkylamide group and a C4-C20 alkylsilylamide group; the above compound (I) being solid, supported or dispersed in an inert liquid medium; and (B) at least one organometallic compound of magnesium having the following formula (II): Mg(R4)n(R5)(2−n) (II) wheType: GrantFiled: September 23, 1998Date of Patent: January 30, 2001Assignee: Enichem S.p.A.Inventors: Francesco Masi, Roberto Santi, Gianfranco Longhini, Andrea Vallieri
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Patent number: 6177377Abstract: This invention relates to polymer blends and the process for preparing naturally compatibilized polyolefin blends using a “one-pot” polymerization of a single monomer, whereby two homopolymers having different structures are produced as well as a third block copolymer having alternating sequences of the two structural segments of the two homopolymers. The formation of the block copolymer is established by solvent extraction and 13C-NMR spectroscopy. The catalyst compositions enabling the direct synthesis of naturally compatibilized polymer blend is prepared by combining four components. The first two components are organometallic complexes of Group IVB or VIIIB elements. The third component is a cocatalyst which irreversibly reacts with at least one ligand on the transition metal complexes. The fourth component is a hydrocarbyl or oxyhydrocarbyl compound of Group IIIA metals, which functions as a cross-over agent.Type: GrantFiled: December 18, 1996Date of Patent: January 23, 2001Assignee: Amherst Polymer Technology, Inc.Inventor: James C. W. Chien
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Patent number: 6171993Abstract: The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1.0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.Type: GrantFiled: December 4, 1998Date of Patent: January 9, 2001Assignee: Equistar Chemicals, LPInventors: Harilaos Mavridis, Mark K. Reinking, Ramesh N. Shroff, Joel A. Mutchler, Charles S. Holland, Keta M. Lindstrom, Kiran M. Gupte, Michael H. Treptau, Francis M. Mirabella
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Patent number: 6166170Abstract: A catalyst composition is disclosed. The composition comprises a titanium compound, a complexing agent, hypophosphorous acid or its metal salt, water and optionally a solvent. The complexing agent can be hydroxycarboxylic acid, alkanolamines, aminocarboxylic acids, or combinations of two or more thereof. The solvent can be water, ethanol, propanol, isopropanol, butanol, ethylene glycol, propylene glycol, isopropylene glycol, butylene glycol, 1-methyl propylene glycol, pentylene glycol, or combinations of two or more thereof. The titanium compound can be combined with a zirconium compound. Also disclosed is a process for using the composition for producing an ester or a polyester. The process comprises contacting a carbonyl compound, in the presence of the composition, with an alcohol under a condition suitable for esterification, transesterification, polymerization, or combinations of two or more thereof.Type: GrantFiled: December 2, 1999Date of Patent: December 26, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: Donald Edward Putzig
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Patent number: 6147024Abstract: The present invention provides a catalyst for the polymerization of olefin that exhibits improved selectivity and broader molecular weight distribution in the polymer product. The catalyst is a conventional supported Ziegler-Natta catalyst in combination with a mixture of at least two electron donors, both having the general formula SiR.sub.m (OR').sub.4-m where R is selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a vinyl group; R' is an alkyl group; and m is 0-3, wherein when R is an alkyl group, R may be identical with R'; when m is 0, 1 or 2, the R' groups may be identical or different; and when m is 1, 2 or 3, the R groups may be identical or different. This catalyst produces polypropylene having xylene solubles of 1-7 to 5.1 wt % and a molecular weight distribution of about 10.Type: GrantFiled: July 12, 1999Date of Patent: November 14, 2000Assignee: Fina Technology, IncInventors: Edwar S. Shamshoum, David John Rauscher, Douglas Alan Burmaster
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Patent number: 6140264Abstract: The present invention provides a novel process for preparing a catalyst, preferably free of electron donor, useful in gas phase polymerization of olefins having a broad polydispersity.Type: GrantFiled: May 12, 1998Date of Patent: October 31, 2000Assignee: Nova Chemicals Ltd.Inventors: Mark Kelly, Dusan Jeremic, Victoria Ker, Charles Russell
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Patent number: 6136747Abstract: A mixed catalyst composition comprising a) a solid Ziegler-Natta catalyst; b) a liquid single site catalyst; and c) at least one activating cocatalyst is provided. Polymers having a broad or bimodal molecular weight distribution may be made with this catalyst composition.Type: GrantFiled: June 19, 1998Date of Patent: October 24, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Sun-Chueh Kao, Frederick John Karol, Paul Theodore Daniell, Gregory Mark Goode
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Patent number: 6124412Abstract: The present invention relates to a new olefin polymerization catalyst composition, and methods of preparing and methods of using the catalysts to polymerize various olefinic monomers in either gas or slurry phase reactions. The principal advance over the previous art of record involves using alumoxanes or combinations of alumoxanes as catalyst preactivators. Polymers prepared from these catalysts posses productivity increased as high as 40 percent. At the same time, the bulk density remains relatively constant. Additionally, the total amount of cocatalyst species needed to effectively practice the invention is relatively low.Type: GrantFiled: December 29, 1997Date of Patent: September 26, 2000Assignee: Saudi Basic Industries CorporationInventors: Abdulmalik Bin-Taleb, Raju Raghavan, Abdulwhab Al-Sadoon
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Patent number: 6121181Abstract: Single site nitrogen and oxygen metallacyclic catalysts comprising at least two polymerization-stable anionic ancillary ligands and a Group 4-10 metal are disclosed wherein the nitrogen or oxygen heterocyclic catalyst is produced by dimerizing an alkylamido or trimerizing a metal containing oxane. The polymerization-stable anionic ancillary ligands are preferably either cyclopentadienyl, borataaryl, pyrrolyl, azaboralinyl, pyridinyl, or a quinolinyl ring. In a preferred embodiment, the invention relates to catalysts of the formula: ##STR1## wherein M is a transition metal of Groups 3-10;L is a polymerization-stable anionic ancillary ligand;R is a hydrocarbyl group containing up to about 12 carbon atoms optionally substituted with halogen; andE is R or halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, N(R).sub.2, hydrogen or another univalent anionic ligand, or mixtures thereof.Type: GrantFiled: August 7, 1998Date of Patent: September 19, 2000Assignee: Equistar Chemicals, L.P.Inventors: Bradley P. Etherton, Ramesh Krishnamurti, Sandor Nagy
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Patent number: 6121396Abstract: A catalyst for polymerization of an olefin is provided which comprises a metallocene compound having a specified substituted fluorenyl group, and a compound capable of reacting the metallocene compound to form a cationic metallocene compound. With this compound, a high-molecular olefin polymer having narrow composition distribution and narrow molecular-weight distribution can be obtained at a polymerization temperature of not lower than 120.degree. C.Type: GrantFiled: October 25, 1995Date of Patent: September 19, 2000Assignee: Tosoh CorporationInventors: Makoto Sone, Saiki Hasegawa, Satoru Yamada, Akihiro Yano
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Patent number: 6114270Abstract: Single-site catalyst systems containing alkylimido ligands are disclosed. The catalyst systems comprise a co-catalyst and a Group 3-10 transition metal catalyst. The catalyst includes an alkyl- or arylimido ligand and a polymerization-stable, anionic ligand selected from boraaryl, pyrrolyl, and azaborolinyl. When used to polymerize olefins, the catalyst systems are highly productive, give good comonomer incorporation, and give polymers with narrow molecular weight distributions.Type: GrantFiled: August 7, 1998Date of Patent: September 5, 2000Assignee: Equistar Chemicals, L.P.Inventors: Ramesh Krishnamurti, Sandor Nagy, John Tyrell, Bradley P. Etherton
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Patent number: 6111040Abstract: A catalyst comprises a composition resulting from mutual contact of the following Components. (A), (B), (C) and (D):said Component (A) being a reaction product resulting from mutual contact of components (a), (b) and (c);said component (a) being represented by the formulaMe.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sup.1.sub.4-p-q Iwherein R.sup.1 and R.sup.2 each are a C.sub.1 -C.sub.24 hydrocarbon moieties, X.sup.1 is a hydrogen atom or a halogen atom, Me.sup.1 is titanium, zirconium or hafnium, p and q are 0.ltoreq.p.ltoreq.4, 0.ltoreq.q.ltoreq.4 and 0.ltoreq.p+q.ltoreq.4,said component (b) being represented by the formulaMe.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n IIwherein R.sup.3 and R.sup.4 each are a C.sub.1 -C.sub.2 4 hydrocarbon moieties, X.sup.2 is a hydrogen atom or a halogen atom, Me.sup.2 is an element of Groups I to III in the Periodic Table, z is a valence of Me.sup.2, and m and n are 0.ltoreq.m.ltoreq.z, 0.ltoreq.n.ltoreq.z and 0.ltoreq.m+n.ltoreq.Type: GrantFiled: February 3, 1998Date of Patent: August 29, 2000Assignee: Nippon Mitsubishi Oil CorporationInventors: Hiroyuki Shimizu, Akira Sano, Kazuo Matsuura
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Patent number: 6083866Abstract: Catalytic system which can be used for the polymerisation of .alpha.-olefins comprising:a solid based on complexed titanium trichloride of .delta. crystalline form;an organoaluminium compound;an organic oxygenated silicon compound; characterised in that the organoaluminium compound is a non-halogenated compound.Type: GrantFiled: February 6, 1997Date of Patent: July 4, 2000Assignee: Solvay Polyolefins Europe-BelgiumInventors: Jean-Louis Costa, Sabine Pamart, Herve Collette, Serge Bettonville
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Patent number: 6084048Abstract: A propylene-1-butene copolymer wherein a Shore A-scale hardness measured according to ASTM D2240 is not more than 70 and an intrinsic viscosity [.eta.] measured in axylene solvent at the temperature of 70.degree. C. is not less than 0.3 and which shows no crystalline melting peak and no crystallization peak in differential scanning calorimeter (DSC) mesurement.Type: GrantFiled: November 14, 1997Date of Patent: July 4, 2000Assignee: Sumitomo Chemical Company, Ltd.Inventors: Hidetake Hozumi, Yasuhito Ijichi
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Patent number: 6071845Abstract: A catalyst obtained by contacting (A) a compound of a transition metal of the group V of the Periodic Table represented by formula (I):R.sub.n M(O).sub.m X.sub.p .cndot.L.sub.Type: GrantFiled: December 6, 1996Date of Patent: June 6, 2000Assignee: Ube Industries, Ltd.Inventors: Nobuhiro Tsujimoto, Michinori Suzuki, Kei Tsukahara, Shigeru Ikai, Koji Imaoka, Yoshiyuki Kai, Jun Yamashita
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Patent number: 6063726Abstract: The invention relates to a polymerization catalyst for alpha-olefins and a process for polymerizing alpha-olefins. The catalyst comprises a component having a transition metal compound supported on a carrier and an aluminoxane. The carrier may be pre-treated with an organometallic compound, a halogen-containing silicon compound or an aluminoxane. Alternatively, the above two catalyst components are subjected to preliminary polymerization of olefins. The catalyst of this invention enables the production of a spherical polymer having a good particle size distribution, an excellent bulk density and a narrow molecular weight distribution in a slurry polymerization method or a vapor-phase polymerization method, particulary the vapor-phase polymerization method. When applied to the copolymerization of at least two olefins, the catalyst has excellent polymerization activity such that an olefin copolymer having a narrow molecular weight distribution and a narrrow composition distribution is obtained.Type: GrantFiled: May 22, 1997Date of Patent: May 16, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Mamoru Kioka, Akinori Toyota, Norio Kashiwa, Toshiyuki Tsutsui
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Patent number: 6054405Abstract: A catalyst composition for the polymerization of olefins is provided, which comprises the reaction product of a fulvene, a complex of an atom selected from Groups 3-14 and the Lanthanides, and an activating cocatalyst.Type: GrantFiled: December 29, 1997Date of Patent: April 25, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Timothy Todd Wenzel
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Patent number: 6001765Abstract: Catalytic system which can be used for the polymerization of .alpha.-olefins comprising:a solid based on complexed titanium trichloride of .delta. crystalline form;an organoaluminium compound;an organic oxygenated silicon compound;characterized in that the organoaluminium compound is a non-halogenated compound.Type: GrantFiled: February 6, 1997Date of Patent: December 14, 1999Assignee: Solvay Polyolefins Europe-BelgiumInventors: Jean-Louis Costa, Sabine Pamart
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Patent number: 5965478Abstract: A solid catalyst component for polymerization of olefins prepared by reacting a titanium halide, a diester of aromatic dicarboxylic acid and a dialkoxymagnesium having a bulk density of at least 0.25 g/ml and an average particle size of 1 to 100 .mu.m. The average rate of temperature rise from the temperature at which the titanium halide is allowed to come in contact with the dialkoxymagnesium to the temperature at which the reaction is initiated is in a range of from 0.5 to 20.degree. C./min. Such catalyst can further comprise an organic aluminum compound and an organic silicon compound. The use of said catalyst makes it possible to efficiently obtain a polyolefin having a high stereoregularity, a high bulk density and excellent particle properties.Type: GrantFiled: August 13, 1997Date of Patent: October 12, 1999Assignee: Toho Titanium Co., Ltd.Inventors: Kenji Goto, Motoki Hosaka, Akira Saito, Tetsuo Ohtsuka
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Patent number: 5959046Abstract: A process for producing a propylene polymer having an intrinsic viscosity (.eta.), as measured in decahydronaphthalene at 135.degree. C., of 1 to 12 dl/g comprises polymerizing propylene optionally with other olefins in the presence of an olefin polymerization catalyst comprising a transition metal compound represented by the formula ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms,X.sup.1 and X.sup.2 are each a halogen atom, andY is a divalent silicon-containing group.Type: GrantFiled: April 21, 1997Date of Patent: September 28, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki
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Patent number: 5948872Abstract: A solid titanium catalyst component ?Ia! containing magnesium, halogen, titanium and a compound having at least two ether linkags with a plurality of intermediately existing bonding atoms; a catalyst and a prepolymerized olefin-containing catalyst prepared by using the solid titanium catalyst component ?Ia!; a method for preparing a polyolefin wherein said catalyst or prepolymerized olefin containing catayst is used. A catalyst and a prepolymerized olefin containing catalyst prepared by using a solid titanium catalyst component ?Ib! containing magnesium, halogen, titanium and a specific electron donor (al), and a compound having at least two ether linkags with a plurality of intermediately existing bonding atoms; a method for preparing a polyolefin wherein said catalyst or prepolymerized olefin containing catayst is used.Type: GrantFiled: December 12, 1997Date of Patent: September 7, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Mamoru Kioka, Tetsunori Shinozaki
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Patent number: 5945366Abstract: A solid catalyst component (A1) for polymerization of olefins prepared by contact with a solid component (d) obtained by allowing (1) a solid component (a) obtained by allowing (i) a dialkoxymagnesium or diaryloxymagnesium, (ii) a titanium compound and (iii) a diester of aromatic dicarboxylic acid to come in contact with one another and (2) a solid component (b) obtained by allowing (i) a dialkoxymagnesium or diaryloxymagnesium, (ii) a titanium compound, (iii) a diester of aromatic dicarboxylic acid and (iv) a polysiloxane to come in contact with one another, to come in contact with each other, or a solid catalyst component (A2) for polymerization of olefins prepared by allowing said solid component (a) and (3) a solid component (d) obtained by allowing (i) a dialkoxymagnesium or diaryloxymagnesium, (ii) a titanium compound, (iii) a diester of aromatic dicarboxylic acid, (iv) a polysiloxane and (v) an aluminum compound to come in contact with one another, to come in contact with each other.Type: GrantFiled: April 21, 1997Date of Patent: August 31, 1999Assignee: Toho Titanium Co., Ltd.Inventors: Takuo Kataoka, Hidetoshi Umebayashi, Kenji Goto
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Patent number: 5932510Abstract: The present invention provides a solid catalyst component (A) obtained by allowing a dialkoxymagnesium or diaryloxymagnesium, a titanium compound, a diester of phthalic acid and a cyclic or chain polysiloxane to come in contact with one another.Further, the present invention provides a catalyst for polymerization of olefins prepared from the foregoing solid catalyst component (A), an organic aluminum compound and an organic silicon compound.Type: GrantFiled: May 1, 1997Date of Patent: August 3, 1999Assignee: Toho Titanium Co., Ltd.Inventors: Motoki Hosaka, Kenji Goto, Takuo Kataoka, Hayashi Ogawa
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Patent number: 5824618Abstract: A catalyst component is disclosed for use in the homo- or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula M.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q, M.sup.1 being titanium a second compound of the formula M.sup.2 (OR.sup.3).sub.m R.sup.4.sub.n X.sup.2.sub.z-m-n, with M.sup.2 being a metal of Groups Ia-IIIa or IIb of the Periodic Table, and a third compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing controlled molecular weight, wide distribution thereof and other desirable qualities in the polymer product.Type: GrantFiled: June 6, 1995Date of Patent: October 20, 1998Assignee: Nippon Oil Co., Ltd.Inventors: Yoshio Tajima, Naoki Kataoka, Yosuke Numao, Takashi Seki, Kazuo Matsuura
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Patent number: 5804678Abstract: In a gas phase olefin polymerization, an olefin is continuously fed to a fluid bed reactor in which a metallocene catalyst is present. At least one compound selected from water, alcohols and ketones is added in a specified amount simultaneously with the feeding of the olefin. Thus, an olefin polymer having a satisfactory drop second count index as defined by the below indicated formula is produced: ##EQU1## wherein t.sub.0 and t respectively represent a flow time measured in the flow test according to ASTM D-1775 of the olefin polymer obtained when none of the water, alcohols and ketones is incorporated in the reactor, and when at least one compound of water, alcohols and ketones is incorporated in the reactor. The flowability of the polymer formed in the reactor is excellent, so that blocking, bridging and the like do not occur during the gas phase polymerization. Thus, it is feasible to stably produce a (co)polymer having excellent particle properties in high yield for a prolonged period of time.Type: GrantFiled: July 12, 1994Date of Patent: September 8, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Yoshinori Morita, Hiroshi Nishikawa, Yutaka Haneda, Satoru Ohtani, Kenji Doi
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Patent number: 5789333Abstract: The present invention provides new catalyst formats which comprise a supported catalyst tethered to a second and different catalyst by a suitable tethering ligand. A preferred system comprises a heterogeneous supported metal catalyst tethered to a homogeneous catalyst. This combination of homogeneous and heterogeneous catalysts has a sufficient lifetime and unusually high catalytic activity in arene hydrogenations, and potentially many other reactions as well, including, but not limited to hydroformylation, hydrosilation, olefin oxidation, isomerization, hydrocyanation, olefin metathesis, olefin polymerization, carbonylation, enantioselective catalysis and photoduplication. These catalysts are easily separated from the products, and can be reused repeatedly, making these systems very economical.Type: GrantFiled: March 5, 1997Date of Patent: August 4, 1998Assignee: Iowa State University Research Foundation, Inc.Inventors: Robert J. Angelici, Hanrong Gao
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Patent number: 5780562Abstract: A novel olefin polymerization catalyst is obtained by contacting the following components (1) to (5) with one another: (1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sup.1.sub.4-p-q, (2) a compound represented by the general formula Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n, (3) an organocyclic compound having conjugated double bonds; (4) a modified organoaluminum compound having Al--O--Al bond(s); and (5) a silicon oxide and/or an aluminum oxide both having characteristic average particle diameter, specific surface area, volume of pores ranging in pore radius from 18 to 1,000 Angstroms, apparent specific gravity not lower than 0.32, and proportion of 50 .mu.m or smaller particles.Type: GrantFiled: August 21, 1995Date of Patent: July 14, 1998Assignees: Nippon Oil Co., Ltd., Mizusawa IndustrialInventors: Hiroyuki Shimizu, Akira Sano, Kazuo Matsuura, Yuuji Washio
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Patent number: 5767033Abstract: The novel transition metal compound of the invention is represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms;X.sup.1 and X.sup.2 are each a halogen atom; andY is a divalent silicon-containing group selected from the group consisting of dimethylsilylene, diphenylsilylene and methylphenylsilylene. The transition metal compound is useful for an olefin polymerization catalyst with which a propylene (co)polymer having specific structure is prepared.Type: GrantFiled: November 18, 1996Date of Patent: June 16, 1998Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki
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Patent number: 5763549Abstract: Metallocene catalysts and their preparation and use in the polymerization of olefins. Specifically, the catalysts and processes relate to polymerization of olefins in which an aluminum ionizing agent containing a triphenylcarbenium ion is utilized in preparing the catalyst. The preparation of an olefin polymerization catalyst comprising a metallocene-type catalyst and triphenylcarbenium tetrakis(pentafluorophenyl)aluminate is disclosed.Type: GrantFiled: June 4, 1992Date of Patent: June 9, 1998Assignee: Fina Technology, Inc.Inventors: Michael J. Elder, John A. Ewen
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Patent number: 5756416Abstract: A catalyst composition comprising A) an aluminoxane-impregnated support prepared by contacting an aluminoxane with an inert carrier material and heating to a temperature of at least about 80.degree. C.; B) a metallocene of the formula:(L).sub.y (L')MY.sub.(x-y-1)wherein M is a metal from groups IIIB to VIII of the Periodic Table; each L and L' is independently a cycloalkadienyl group bonded to M; each Y is independently hydrogen, an aryl, alkyl, alkenyl, alkylaryl, or arylalkyl radical having 1-20 carbon atoms, a hydrocarboxy radical having from 1-20 carbon atoms, a halogen, RCO.sub.2 --, or R.sub.2 N--, wherein R is a hydrocarbyl group containing 1 to about 20 carbon atoms; n and m are each 0, 1, 2, 3, or 4; y is 0, 1, or 2; x is 1, 2, 3, or 4; and x-y.gtoreq.1; C) a bulky aluminum alkyl of the formula:AlR.sup.1.sub.x R.sup.2.sub.(3-x)wherein R.sup.1 is a hydrocarbyl group having 1 to 12 carbon atoms; x is an integer from 0 to 2; R.sup.2 is a hydrocarbyl group of the formula --(CH.sub.2).sub.y -- R.sup.Type: GrantFiled: November 28, 1995Date of Patent: May 26, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Eric Paul Wasserman, Sun Chueh Kao, Frederick John Karol